Enzymes are often described as following the two-step mechanism: E + S= ES (fast) ES → E + P (slow) where E = enzyme, S = substrate, ES = enzyme-substrate complex, and P = product. (a) If an enzyme follows this mechanism, what rate law is expected for the reaction? (b) Molecules that can bind to the active site of an enzyme but are not converted into product are called enzyme inhibitors. Write an additional elementary step to add into the preceding mechanism to account for the reaction of E with I, an inhibitor.
Enzymes are often described as following the two-step mechanism: E + S= ES (fast) ES → E + P (slow) where E = enzyme, S = substrate, ES = enzyme-substrate complex, and P = product. (a) If an enzyme follows this mechanism, what rate law is expected for the reaction? (b) Molecules that can bind to the active site of an enzyme but are not converted into product are called enzyme inhibitors. Write an additional elementary step to add into the preceding mechanism to account for the reaction of E with I, an inhibitor.
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Transcribed Image Text:Enzymes are often described as following the two-step
mechanism:
E + S= ES (fast)
ES → E + P (slow)
where E = enzyme, S = substrate,
ES = enzyme-substrate complex, and P = product.
(a) If an enzyme follows this mechanism, what rate law
is expected for the reaction? (b) Molecules that can bind
to the active site of an enzyme but are not converted into
product are called enzyme inhibitors. Write an additional
elementary step to add into the preceding mechanism to
account for the reaction of E with I, an inhibitor.
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